Due to a planned power outage, our services will be reduced on Tuesday, June 15th, starting at 8:30am PDT until the work is complete. We apologize for the inconvenience.
John Shive explains that pulse propagation on ropes and slinkies shows elementary characteristics of waves, such as different speeds in different media. He uses a torsion bar wave machine to repeat these experiments to demonstrate reflection and other phenomena. For more info on PSSC, its history, and films, visit http://www.afana.org/psscfilms.htm
